text: /* Copyright 2021 The Chromium OS Authors. All rights reserved.
   * Use of this source code is governed by a BSD-style license that can be
   * found in the LICENSE file.
   */
  
  /* Taeko specific PWM LED settings: there are 2 LEDs on each side of the board,
   * each one can be controlled separately. The LED colors are white or amber,
   * and the default behavior is tied to the charging process: both sides are
   * amber while charging the battery and white when the battery is charged.
   */
  
  #include "common.h"
  #include "led_onoff_states.h"
  #include "led_common.h"
  #include "gpio.h"
  
  #define CPRINTS(format, args...) cprints(CC_CHARGER, format, ## args)
  #define CPRINTF(format, args...) cprintf(CC_CHARGER, format, ## args)
  
  #define LED_OFF_LVL	1
  #define LED_ON_LVL	0
  
  __override const int led_charge_lvl_1 = 5;
  
  __override const int led_charge_lvl_2 = 97;
  
  __override struct led_descriptor
  		led_bat_state_table[LED_NUM_STATES][LED_NUM_PHASES] = {
  	[STATE_CHARGING_LVL_1]	     = {{EC_LED_COLOR_RED, LED_INDEFINITE} },
  	[STATE_CHARGING_LVL_2]	     = {{EC_LED_COLOR_AMBER, LED_INDEFINITE} },
  	[STATE_CHARGING_FULL_CHARGE] = {{EC_LED_COLOR_GREEN, LED_INDEFINITE} },
  	[STATE_DISCHARGE_S0]	     = {{LED_OFF,            LED_INDEFINITE} },
  	[STATE_DISCHARGE_S3]	     = {{LED_OFF,            LED_INDEFINITE} },
  	[STATE_DISCHARGE_S5]         = {{LED_OFF,            LED_INDEFINITE} },
  	[STATE_BATTERY_ERROR]        = {{EC_LED_COLOR_RED,   1 * LED_ONE_SEC},
  					{LED_OFF,            1 * LED_ONE_SEC} },
  	[STATE_FACTORY_TEST]         = {{EC_LED_COLOR_RED,   2 * LED_ONE_SEC},
  					{EC_LED_COLOR_GREEN, 2 * LED_ONE_SEC} },
  };
  
  __override const struct led_descriptor
  		led_pwr_state_table[PWR_LED_NUM_STATES][LED_NUM_PHASES] = {
  	[PWR_LED_STATE_ON]            = {{EC_LED_COLOR_WHITE, LED_INDEFINITE} },
  	[PWR_LED_STATE_SUSPEND_AC]    = {{EC_LED_COLOR_WHITE, 1 * LED_ONE_SEC},
  					 {LED_OFF,         3 * LED_ONE_SEC} },
  	[PWR_LED_STATE_SUSPEND_NO_AC] = {{EC_LED_COLOR_WHITE, 1 * LED_ONE_SEC},
  					 {LED_OFF,         3 * LED_ONE_SEC} },
  	[PWR_LED_STATE_OFF]           = {{LED_OFF,            LED_INDEFINITE} },
  };
  
  const enum ec_led_id supported_led_ids[] = {
  	EC_LED_ID_BATTERY_LED,
  	EC_LED_ID_POWER_LED
  };
  
  const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
  
  __override void led_set_color_power(enum ec_led_colors color)
  {
  	if (color == EC_LED_COLOR_WHITE)
  		gpio_set_level(GPIO_LED_3_L, LED_ON_LVL);
  	else
  		/* LED_OFF and unsupported colors */
  		gpio_set_level(GPIO_LED_3_L, LED_OFF_LVL);
  }
  
  __override void led_set_color_battery(enum ec_led_colors color)
  {
  	switch (color) {
  	case EC_LED_COLOR_AMBER:
  		gpio_set_level(GPIO_LED_1_L, LED_ON_LVL);
  		gpio_set_level(GPIO_LED_2_L, LED_ON_LVL);
  		break;
  	case EC_LED_COLOR_RED:
  		gpio_set_level(GPIO_LED_1_L, LED_ON_LVL);
  		gpio_set_level(GPIO_LED_2_L, LED_OFF_LVL);
  		break;
  	case EC_LED_COLOR_GREEN:
  		gpio_set_level(GPIO_LED_1_L, LED_OFF_LVL);
  		gpio_set_level(GPIO_LED_2_L, LED_ON_LVL);
  		break;
  	default: /* LED_OFF and other unsupported colors */
  		gpio_set_level(GPIO_LED_1_L, LED_OFF_LVL);
  		gpio_set_level(GPIO_LED_2_L, LED_OFF_LVL);
  		break;
  	}
  }
  
  void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
  {
  	if (led_id == EC_LED_ID_BATTERY_LED) {
  		brightness_range[EC_LED_COLOR_RED] = 1;
  		brightness_range[EC_LED_COLOR_AMBER] = 1;
  		brightness_range[EC_LED_COLOR_GREEN] = 1;
  	} else if (led_id == EC_LED_ID_POWER_LED) {
  		brightness_range[EC_LED_COLOR_WHITE] = 1;
  	}
  }
  
  int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
  {
  	if (led_id == EC_LED_ID_BATTERY_LED) {
  		if (brightness[EC_LED_COLOR_RED] != 0)
  			led_set_color_battery(EC_LED_COLOR_RED);
  		else if (brightness[EC_LED_COLOR_AMBER] != 0)
  			led_set_color_battery(EC_LED_COLOR_AMBER);
  		else if (brightness[EC_LED_COLOR_GREEN] != 0)
  			led_set_color_battery(EC_LED_COLOR_GREEN);
  		else
  			led_set_color_battery(LED_OFF);
  	} else if (led_id == EC_LED_ID_POWER_LED) {
  		if (brightness[EC_LED_COLOR_WHITE] != 0)
  			led_set_color_power(EC_LED_COLOR_WHITE);
  		else
  			led_set_color_power(LED_OFF);
  	}
  
  	return EC_SUCCESS;
  }
  